Guild Wars 2

I personally don’t know exactly, but I don’t see any reason why not. Transmutation stones just copy one item’s looks and attach it to another, so the level is not important as long as you can use the item of which you are keeping the stats. The video here shows how the system works: http://www.youtube.com/watch?v=irB0YIDpBPg
You select the looks of the item you want to keep and the stats of the other one, so I think anything goes level-wise.

Also, you can easily see the channels available by clicking on the arrow pointing down next to “Main” on the chat panel. More info can be found on the wiki: http://wiki.guildwars2.com/wiki/Chat_panel